I just wanna to ask, what do you think about this device: https://www.kickstarter.com/projects/1861630723/take-control-of-your-sleep-with-kokoon-eeg-headpho/description - it helps to sleep better by cancelling the voice (white noise) and has a EEG detector + smartphone remote and using an app it can help to induce lucid dream state, also you can try polyphasic sleeping with it. I know there was many similar devices in the past, but this one, especially because the EEG sensor might actually work. Or not…?